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    • 23. 发明申请
    • ROTARY TENSIONER
    • 旋转张力器
    • US20100261564A1
    • 2010-10-14
    • US12422638
    • 2009-04-13
    • Thomas E. Hughes
    • Thomas E. Hughes
    • F16H7/12F16H7/08
    • F16H7/1281F16H2007/0806F16H2007/0893
    • An assembly for maintaining tension in a drive belt features a housing mounted on a base. The housing contains a biasing element that exerts torque on the housing to bias the housing. An arm is connected to the housing and rotates with the housing in response to the bias of the biasing element. A pulley is connected to the lever arm and engages a drive belt in response to the bias force of the biasing element on the lever arm. The pulley deflects the shape of the belt to provide tension in the belt. A sealing element provides prevents migration of debris into the housing and provides a biasing force to impede translatory movement of a first half of the housing from a second half of the housing, while allowing rotation of the first half relative to the second half.
    • 用于维持传动带中的张力的组件具有安装在基座上的壳体。 壳体包含偏压元件,该偏置元件在壳体上施加扭矩以偏置壳体。 臂连接到壳体并响应于偏置元件的偏压而与壳体一起旋转。 滑轮连接到杠杆臂并响应于杠杆臂上的偏置元件的偏压力而啮合驱动带。 皮带轮使皮带的形状偏转以在皮带中提供张力。 密封元件防止碎片进入壳体并且提供偏置力以阻止壳体的第一半部从壳体的第二半部平移运动,同时允许第一半部相对于第二半部旋转。
    • 29. 发明授权
    • Elastic dental device
    • 弹性牙科装置
    • US06435874B1
    • 2002-08-20
    • US09899707
    • 2001-07-05
    • Thomas E. Hughes
    • Thomas E. Hughes
    • A61C700
    • A61C5/85
    • Structures and methods are disclosed which may be used for applying force to the base of a matrix band or cavity filling material mold during a cavity filling procedure. In a preferred exemplary embodiment of the present invention, a unitary body of elastic material is stretched preferably by applying force in opposite directions to the opposite ends of the unitary body such that a central portion of the body of material is thinned. The thinned portion of the unitary body may then be easily inserted in the space between two adjacent teeth next to the base of a matrix band or cavity filling material mold. After the unitary body has been inserted into the space between two adjacent teeth next to the base of the matrix band or cavity filling material mold, the force which has been applied to the opposite ends of the unitary body is then removed. As a result, the previously stretched elastic unitary body contracts and becomes thicker in its central portion that had been previously thinned. The contraction and thickening of the unitary body in the space between adjacent teeth fills this space and applies and outward force to the walls of this cavity. Accordingly, the contracted unitary body applies a force on the base of the matrix band or cavity filling material mold which forces the base of the matrix band or filling material mold adjacent to the base of the tooth to be filled.
    • 公开了可以用于在空腔填充程序期间向矩阵带或空腔填充材料模具的基部施加力的结构和方法。 在本发明的优选示例性实施例中,弹性材料的整体通过相对于整体的相对端施加力而被拉伸,使得材料体的中心部分变薄。 然后,可以容易地将单体的薄化部分插入紧邻基质带或空腔填充材料模具的基部的两个相邻齿之间的空间中。 在单体被插入紧邻基质带或空腔填充材料模具的基部的两个相邻齿之间的空间之后,已经施加到整体的相对端的力被去除。 结果,先前拉伸的弹性单体在其先前变薄的中心部分收缩并变厚。 相邻齿之间的空间中的整体的收缩和增厚填满了这个空间,并向该空腔的壁施加向外的力。 因此,收缩单体在矩阵带或空腔填充材料模的基部施加力,迫使基体带的基部或填充材料模具与待填充的牙齿的基部相邻。